Comb.



PKTENTED JUNE 30, 1903. J. LI

00MB. Arrmou'mn FILED An; 3. 1902.

N0 MODEL.

UNITED STATES Patented June 30, 1903.

JOHN L. GILLUM, OF PHILADELPHIA, PENNSYLVANIA.

COMB.

SPECIFICATION-forming part of Letters Patent No. 732,543, dated June 30,1903.

Application filed April 3, 1902.

solid back, but which is less expensive as well as lighter and moreelastic than a comb of that character.

A further object is to improve the end or guard teeth of the comb.

These objects I attain in the manner hereinafter set forth, referencebeing had to the accompanying drawings, ,in which-- Figure 1 is aperspective view of a comb constructed in accordance with my invention.

Fig. 2 is a transverse section of the same. Fig. 3 is a similar sectionshowing the toothed bar and back of the comb before the same have beenunited, and Fig. 4 is a longitudinal section of one end of the comb.

In the usual method of manufacturing combs of celluloid having heavybacks a strip of the material as thick as the back of thecomb must beemployed, portions of this strip being removed on each side so as toreduce the thickness of the same to the extent de sired for thetoothedportion of the comb, the

portions thus removed as well as those removed in the formation of theteeth being waste, which has but little value as compared with theoriginal cost of the material, the lat ter being quite expensive. Inorder to overcome this objection, I devised the invention forming thesubject of my Patent No. 686,050, dated November 5, 1901, wherein theback of the comb was formed by a strip of material independent of thatforming the toothed bar of the comb, this strip being bent around theback of said toothed bar and cemented or f welded to the latter at itsedges, the back being free from contact with the toothed bar except atand near said united edges of the same and the hollow back beingsuitably closed at the ends. This method of manufacture produced a combwhich was much cheaper and more elastic than a comb with solid back, andone object of my present invention is to further cheapen the manufac-Serial No. 101,222. (No model.)

ture without detracting from the value of the comb as compared with thatpreviously patented. 7

' In carrying out my present invention I form in the toothed bar 1 ofthe comb longitudinal grooves 2, extending throughout the length of saidbar close to the roots of the teeth, as shown inFigs. 3 and 4, and Isoform the bent strip 3, which constitutes the back of the comb, thatstrip is in its normal condition, almost meet or wil1,at any rate, becloser than the distance between the bases of the opposite grooves 2 inthe toothed bar 1 of the comb. the bent strip 3 are then pressed apartuntil the grooved portion of the bar 1 can pass between the same,andsaid strip 3 is then slipped longitudinallyonto said grooved bar,thelower edges of the strip, owing to the elasticity of the same,fitting-snugly into the grooves 2 and tightly hugging the bar 1. formedwill not only retain its seat by its own resiliency upon the body of thecomb, but when the comb is bent, as frequently happens in use, thisresiliency will cause the relation between the back and body to remainfixed, and the back and body will straighten to normal shape without anychange in the position of the parts. The open ends of the back of thecomb are then closed by disks 4, firmly cemented or welded in place atthe ends of the comb. By preference these disks 4 form part of the endor guard teeth 5 of the comb, as shown in'Figs. 1 and 4, such teethbeing therefore more elastic than the heavy teeth usually formed at theends of the toothed bar of the comb. By thus making the end or guardteeth of the comb separate from the toothed bar 1, moreover, themanufacture of said toothed bar is facilitated, since a strip of anydesired length can be uniformly toothed, whereas in the ordinarypractice thejtooth ing-machine must be set so as to form heavy teeth atpredetermined intervalsand skilled and expensive labor must be employedfor running the machines The heavy end or guard teeth must also be bentafter their formation, so that their inner edges shall be straight, andthis bending materially weakens the teeth.

I am aware that strips of metal have been bent around the toothed bar ofa comb so that The edges of The back thus the lower edges of the samewill,when the bent ICO sures its firm retention upon the toothed bar ofthe comb without the employment of any such fastening device.

Having thus described my invention, I

claim and desire to secure by Letters Patent 1. A comb of celluloid orlike material having a toothed bar with longitudinal grooves on eachside, and a hollow back consisting of a bent strip of like materialhaving resilient sides with their lower edges seated in said grooves andretained in position by the hold of the strip upon the bar due to theresiliency of said strip, substantially as specified.

2. The combination in a comb, of a toothed bar of celluloid or likematerial having longitudinal grooves in its opposite sides, a back teethforming part of said disks, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN L. GILLUM.

\Vitnesses:

F. E. BEoHToLn, Jos. H. KLEIN.

hollow back and depending end or guard

